Spot Intelligence Report — Sighting of Unconventional Aircraft, Nahant, Massachusetts, 23 July 1952

This document is a Spot Intelligence Report dated 29 July 1952, issued by Detachment B, 1st District OSI (IG) USAF in Boston, Massachusetts. It details an incident that occurred on 23 July 1952, between 0215 and 0218 hours, at the Nahant Coast Guard Station in Nahant, Massachusetts. The primary witness was Seaman Henry Armpriester, who was interviewed by Special Agent Julius B. Poppinger. According to the report, the witness observed two disk-shaped, bluish lights, each approximately 5 feet in diameter. These objects were described as having no aerodynamic features and were observed traveling side-by-side at a relatively high rate of speed, estimated to be faster than a four-engine airliner, at an altitude between 1,000 and 2,000 feet. The objects reportedly moved without sound or an exhaust trail, performed a sharp turn, gained altitude, and then disappeared. The duration of the sighting was approximately three minutes. The report notes that the weather was clear with a visibility of 12 miles. The investigation concluded that there was no physical evidence to support the sighting, and no interception action was taken by the Coast Guard. The report further states that no activity or condition was identified that could account for the sighting. Copies of the report were forwarded to the Commanding General of the Air Material Command at Wright-Patterson Air Force Base in Dayton, Ohio. The document is marked as unclassified and includes instructions for downgrading and declassification at three-year intervals, consistent with Department of Defense Directive 5200.10.